package com.shenfc.fxzj.shiro;

import com.shenfc.fxzj.constants.CodeConstants;
import org.apache.shiro.cache.Cache;
import org.apache.shiro.cache.CacheException;
import org.springframework.data.redis.core.RedisTemplate;

import java.io.Serializable;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;

public class RedisValueCache<K, V> implements Cache<K, V>, Serializable {

    private String cacheKey;

    private RedisTemplate<K, V> redisTemplate;

    private long globExpire = 1;//*60*60;

    public RedisValueCache(String name, RedisTemplate client) {
        this.cacheKey = CodeConstants.REDIS_SHIRO_CACHE;
        this.redisTemplate = client;
    }

    @Override
    public V get(K key) throws CacheException {
//        redisTemplate.boundValueOps(getCacheKey(key)).expire(globExpire, TimeUnit.MINUTES);
        return redisTemplate.boundValueOps(getCacheKey(key)).get();
    }

    @Override
    public V put(K key, V value) throws CacheException {
        V old = get(key);
        redisTemplate.boundValueOps(getCacheKey(key)).set(value);
        return old;
    }

    @Override
    public V remove(K key) throws CacheException {
        V old = get(key);
//        redisTemplate.delete(getCacheKey(key));
        return old;
    }

    @Override
    public void clear() throws CacheException {
//        redisTemplate.delete(keys());
    }

    @Override
    public int size() {
        return keys().size();
    }

    @Override
    public Set keys() {
        return redisTemplate.keys(getCacheKey("*"));
    }

    @Override
    public Collection values() {
        Set<K> set = keys();
        List list = new LinkedList();
        for (K s : set) {
            list.add(get(s));
        }
        return list;
    }

    private K getCacheKey(Object k) {
        return (K) (this.cacheKey + k);
    }
}